Evaluation Model of Digital Image Mosaic for Dunhuang Frescoes

Aiming at the evaluation problems existing in digital image mosaic for Dunhuang frescoes,a evaluation model of more sophisticated digital image mosaic results is presented in combination with the characteristics of digital images of Dunhuang frescoes based on analyzing various parameters and methods for evaluating the image mosaic quality objectively and quantitatively.The digital images were stitched by using Harris algorithm and SURF algorithm respectively.The stitched images were evaluated with the evaluation model.A lot of experiment results show that this model can reflect the eye's feeling more accurately.As for different scenes,viarious indexes of an image are different,so it is difficult to specify a uniform standard.A "Custom Setting " that can regulate every index to adapt to different scenes was added during the experiment to solve this problem.